CVE-2026-12324

—

CVSS 3.1

7.3 high

EPSS

<1%p11

Published

Jun 16, 2026 (Jun 16, 2026)

Modified

Jun 17, 2026

Description

Incorrect boundary conditions in the Graphics: CanvasWebGL component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12.

Vendors: mozilla
Products: firefox, thunderbird
Weakness: CWE-703
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

NVD CVE.org GitHub PoCs EPSS (0.2%)

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